Posted On: Apr 09, 2021
AlCl3, or aluminum chloride, has a total of 24 valence electrons.
To determine the number of valence electrons in AlCl3, we first need to look at the electronic configuration of aluminum (Al) and chlorine (Cl). Aluminum has three valence electrons in its third energy level, while chlorine has seven valence electrons in its third energy level.
To form AlCl3, three chlorine atoms will share their one unpaired electron with the three valence electrons of aluminum. This results in a total of 24 valence electrons:
Al: [Ne] 3s2 3p1
Cl: [Ne] 3s2 3p5
AlCl3: [Al] 3s2 3p6 [Cl] 3s2 3p6 [Cl] 3s2 3p6 [Cl] 3s2 3p6
Therefore, AlCl3 has 24 valence electrons.
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